The four pilots all reunite and defeat Idun together. Meanwhile, Tsubaki struggles with her emotions at leaving to synchronize with the island core. Kazuki, with the help of Akane, manages to rescue Soushi, bearing the assimilation. As the Meir begins to make its way to the atmosphere, Maya snipes at it, preventing it from spreading all over the world. Tsubaki has become one with island, as she dissolves into thin air. Idun, barely alive in the Fafner Mark Nicht, hinders Kazuki and Soushi from leaving the battlefield, but Koyo is able to save the two. On their way to the island, Soushi vanishes because of his near assimilated state.
